MEASUREMENT OF HYPERFINE STRUCTURE SPLITTING OF SILVER ATOMS IN SUPERFLUID HELIUM

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Other Title
  • 超流動ヘリウム中Ag原子の超微細構造間隔測定

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Abstract

We have been developing a laser spectroscopy technique called OROCHI to study nuclear structure of low production yield unstable nuclei. In OROCHI, the energetic ion beams generated at an accelerator are stopped in superfluid helium with high efficiency (～100%) and neutralized. Zeeman structure splitting of atoms is measured using laser-radio frequency double resonance method to determine their nuclear spins. We can also derive nuclear electromagnetic moments from the measurement of hyperfine structure splitting using laser-microwave double resonance method. It is also important to develop measurement method for various atomic species without using accelerators. For this purpose we introduce stable isotopes into superfluid helium by laser ablation method. We have so far successfully applied OROCHI to alkali atoms such as Rb and Cs. However, studies of atomic species other than alkalis are limited. In this study, we successfully introduced Ag atoms into superfluid helium using two-step laser sputtering by changing the wavelength of the second laser. As a result, we successfully measured the hyperfine structure splitting of Ag atoms.

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Details 詳細情報について

  • CRID
    1390572174778391040
  • NII Article ID
    120006715047
  • NII Book ID
    AA12677220
  • DOI
    10.15002/00022071
  • HANDLE
    10114/00022071
  • ISSN
    21879923
  • Text Lang
    ja
  • Data Source
    • JaLC
    • IRDB
    • CiNii Articles
  • Abstract License Flag
    Allowed

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